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Long-Term Biosolids Applications to ...

Buchanan, Cassidy,

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Long-Term Biosolids Applications to Overgrazed Rangelands Improve Soil Health /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Long-Term Biosolids Applications to Overgrazed Rangelands Improve Soil Health // Cassidy Buchanan.
作者:	Buchanan, Cassidy,
面頁冊數:	1 electronic resource (53 pages)
附註:	Source: Masters Abstracts International, Volume: 86-11.
Contained By:	Masters Abstracts International86-11.
標題:	Soil sciences. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31930819
ISBN:	9798315760849

Long-Term Biosolids Applications to Overgrazed Rangelands Improve Soil Health /
Buchanan, Cassidy,

Long-Term Biosolids Applications to Overgrazed Rangelands Improve Soil Health /Cassidy Buchanan. - 1 electronic resource (53 pages)

Source: Masters Abstracts International, Volume: 86-11.

Overgrazed rangelands can lead to soil degradation, yet long-term land application of organic amendments (i.e., biosolids) may play a pivotal role in improving overgrazed rangelands in terms of soil health. However, the long-term effects on soil health properties in response to Single or Repeated, low to excessive biosolids applications, on semi-arid, overgrazed grasslands have not been quantified. Using the Soil Management Assessment Framework (SMAF), soil physical, biological, chemical, nutrient, and overall soil health indices between biosolids applications (0, 2.5, 5, 10, 21, or 30 Mg ha−1) and application time (Single: 1991, Repeated: 2002) was determined. Results showed no significant changes in soil physical and nutrient health indices. However, the chemical soil health index was greater when biosolids were applied at rates < 30 Mg ha-1 and within the Single compared to Repeated applications. The biological soil health index was positively affected by increasing biosolids application rate, was overall greater in the Repeated as compared to the Single application, and was maximized at 30 Mg ha-1 . The overall soil health index was maximized at rates < 30 Mg ha-1 . When all indices were combined, and considering past plant community findings at this site, overall soil health appeared optimized at a biosolids application rate of ~ 10 Mg ha-1 . The use of soil health tools can help determine a targeted organic amendment application rate to overgrazed rangelands so the amendment provides maximum benefits to soils, plants, animals, and the environment.

English

ISBN: 9798315760849Subjects--Topical Terms:

2122699
Soil sciences.
Subjects--Index Terms:

Biosolids

Long-Term Biosolids Applications to Overgrazed Rangelands Improve Soil Health /
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500 $a Advisors: Ippolito, Jim Committee members: Blecker, Steve; Paschke, Mark.
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520 $a Overgrazed rangelands can lead to soil degradation, yet long-term land application of organic amendments (i.e., biosolids) may play a pivotal role in improving overgrazed rangelands in terms of soil health. However, the long-term effects on soil health properties in response to Single or Repeated, low to excessive biosolids applications, on semi-arid, overgrazed grasslands have not been quantified. Using the Soil Management Assessment Framework (SMAF), soil physical, biological, chemical, nutrient, and overall soil health indices between biosolids applications (0, 2.5, 5, 10, 21, or 30 Mg ha−1) and application time (Single: 1991, Repeated: 2002) was determined. Results showed no significant changes in soil physical and nutrient health indices. However, the chemical soil health index was greater when biosolids were applied at rates < 30 Mg ha-1 and within the Single compared to Repeated applications. The biological soil health index was positively affected by increasing biosolids application rate, was overall greater in the Repeated as compared to the Single application, and was maximized at 30 Mg ha-1 . The overall soil health index was maximized at rates < 30 Mg ha-1 . When all indices were combined, and considering past plant community findings at this site, overall soil health appeared optimized at a biosolids application rate of ~ 10 Mg ha-1 . The use of soil health tools can help determine a targeted organic amendment application rate to overgrazed rangelands so the amendment provides maximum benefits to soils, plants, animals, and the environment.
546 $a English
590 $a School code: 0053
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650 4 $a Plant sciences. $3 3173832
650 4 $a Biochemistry. $3 518028
650 4 $a Organic chemistry. $3 523952
653 $a Biosolids
653 $a SMAF
653 $a Soil health
653 $a Soil management assessment framework
653 $a Overgrazed grasslands
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690 $a 0487
690 $a 0479
690 $a 0490
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